MATRICES WITH PRESCRIBED SUBMATRICES AND NUMBER OF INVARIANT POLYNOMIALS

被引:10
|
作者
CABRAL, I
机构
[1] Departmento de Matemática Universidade Nova, Lisboa Faculdade de Ciências e Tecnologia Quinta da Torre
关键词
D O I
10.1016/0024-3795(93)00215-L
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
We give necessary and sufficient conditions for the existence of a matrix [A B], over a field, where A is a square matrix, such that [A B] has a prescribed submatrix and the pencil [xI -A -B] has a prescribed number of invariant factors different from 1. As a corollary we give a necessary and sufficient condition for the existence of a completely controllable pair (A, B) such that [A B] has a prescribed submatrix.
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页码:207 / 224
页数:18
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